Moderate earthquake, 5.6 mag was detected near Añatuya in Argentina

A moderate earthquake with magnitude 5.6 (ml/mb) was detected on Saturday, 37 kilometers (23 miles) from Añatuya in Argentina. Date and time of earthquake in UTC/GMT: 27/12/25 / 2025-12-27 10:40:49 / December 27, 2025 @ 10:40 am. Exact location of event, longitude -63.1554 West, latitude -28.27 South, depth = 588.313 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 588.313 km (366 miles) below the earth’s surface. Id of earthquake: us7000rl1p. Event ids that are associated: us7000rl1p. The temblor was reported at 10:40:49 / 10:40 am (local time epicenter).

The epicenter was 38 km (24 miles) from Añatuya (c. 20 300 pop), 101 km (63 miles) from Quimilí (c. 11 000 pop), 46 km (29 miles) from Suncho Corral (c. 6 100 pop), 101 km (63 miles) from Beltrán (c. 5 300 pop). Nearest cities/city/towns to hypocenter/epicentrum was Beltrán, Quimilí, Suncho Corral (min 5000 pop). Country/countries that might be effected, Argentina (c. 41 343 000 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days one earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. There are an estimated 1320 moderate earthquakes in the world each year.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 37 km NW of Añatuya, Argentina. This data comes from the USGS Earthquake Notification Service.

More information

Parameter	Value	Description
Magnitude	5.6 mb	The magnitude for the event.
Longitude	-63.1554° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-28.27° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	588.313 km	Depth of the event in kilometers.
Place	37 km NW of Añatuya, Argentina	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-12-27 10:40:49	Time when the event occurred. UTC/GMT
Updated	2025-12-27 10:57:14	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt		The total number of felt reports
CDI		The maximum reported intensity for the event.
MMI		The maximum estimated instrumental intensity for the event.
Alert Level		The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status	reviewed	Indicates whether the event has been reviewed by a human.
Tsunami	0	This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG	482	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	us	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,us,	A comma-separated list of network contributors.
Number of Stations Used	96	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	4.248	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.74 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	33	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	mww	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us7000rl1p	Id of event.
Event Code	7000rl1p	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000rl1p,	A comma-separated list of event ids that are associated to an event.

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Moderate earthquake, 5.6 mag was detected near Añatuya in Argentina

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